#cdo -O -sellevel,200 -seltimestep,9 infile.nc outfile.nc
#cdo -sellonlatbox,60,150,10,50 era5.pl.2022011512.0p25_uv200hPa.nc era5_0p25_uv200_regrional.nc
ncwa -O -a time era5_0p25_uv200_regrional.nc out.nc # get rid of of the 'time' dimension of size 1 

